Hey 👋 I’m Anastasiia, a Senior Software Engineer specializing in cross-platform React Native app development for operations platforms, SaaS products, and real estate / field-service teams, from MVP to production-ready apps on iOS and Android. I help teams turn product ideas into stable, scalable mobile systems that users actually rely on daily. 🚀 What I Build with React Native Cross-platform mobile apps (iOS + Android) with a mobile-first UX Offline-first workflows with reliable data sync Push notifications (real-time updates, alerts, user engagement) Payments & subscriptions (in-app purchases, Stripe, Apple/Google Pay) Maps, geolocation & route-based features BLE / device integrations when hardware is involved Secure API integrations (often with .NET / REST / GraphQL backends) Admin dashboards (web companion panels for operations teams) 🧠 How I Work Discovery → clarify product goals, users, and edge cases Architecture → define scalable mobile structure (state, data flow, API design) Milestone delivery → iterative builds with clear scope per stage Weekly demos → working builds you can test continuously Store release → full App Store / Google Play preparation and deployment 💡 Why this approach works You get a production-ready architecture early, not just UI screens The app is designed to scale from MVP → full platform without rewrites Mobile performance, reliability, and UX are treated as core requirements, not afterthoughts You always know what’s being built and why, at every step If you already have an app idea, a prototype, or even an existing codebase, share it with me. I’ll map out the fastest and cleanest path to get it into production.

I help Shopify brands build and scale high-performing ecommerce products through custom themes, apps, and advanced integrations. With strong expertise in Shopify (Themes & Apps) and full-stack development (React / Next.js), I deliver scalable, fast, and conversion-focused solutions tailored to real business needs. 🛍️ Shopify Development (Core Focus) • Custom Shopify Themes (Online Store 2.0, Dawn, performance & CRO-focused) • Shopify App Development (public & private apps) • Shopify API integrations (Admin API, Storefront API, Webhooks) • Checkout Extensibility & Shopify Functions • Subscription, payment, and shipping integrations • Headless Shopify (Hydrogen / custom frontend) ⚙️ Full-Stack Development (Advanced Cases) • React / Next.js applications for ecommerce • Custom dashboards & internal tools • Complex API integrations (REST & GraphQL) • Scalable backend systems and automation workflows 🧠 What I focus on: ✔️ Clean, scalable, and maintainable architecture ✔️ High performance and fast-loading storefronts ✔️ Conversion-focused UX (not just development) ✔️ Business-oriented solutions, not just code 🛠️ Tech Stack: Shopify & Shopify Plus Liquid, JavaScript (ES6+), HTML5, CSS3 React / Next.js REST & GraphQL APIs Shopify CLI, App Bridge, Polaris Webhooks, Shopify Functions Git 🎯 Typical solutions I deliver: • Custom Shopify storefronts and theme architecture • Shopify apps for automation and integrations • Advanced cart & checkout logic • Post-purchase upsell flows • Subscription and recurring payment systems • Shopify + external system integrations 💬 If you’re looking for a Shopify expert who can go beyond themes and handle complex, full-stack challenges — let’s talk. Updated: 1st July 2026

🚀 𝗧𝗼𝗽 𝗥𝗮𝘁𝗲𝗱 𝗣𝗛𝗣 𝗟𝗮𝗿𝗮𝘃𝗲𝗹 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗲𝗿 · 𝟭𝟬𝟬% 𝗝𝗦𝗦 · 𝟭,𝟰𝟬𝟬+ 𝗵𝗿𝘀 · 𝟴 𝘆𝗿𝘀 𝗶𝗻 𝗽𝗿𝗼𝗱𝘂𝗰𝘁𝗶𝗼𝗻 Platforms I build don't require rewrites in 18 months. They handle real operational complexity from day one. Click "𝗛𝗶𝗿𝗲" 𝗼𝗿 "𝗜𝗻𝘃𝗶𝘁𝗲" to work with a PHP Laravel Developer who owns the architecture, not just the tickets. 📍 Lifetime warranty on every feature - I fix what breaks on my side. No questions asked. 📍 PHP Developer and Laravel Developer. 8 years of production-grade PHP Laravel and Symfony delivery. 📍 Full Stack Developer PHP and Full Stack Developer Laravel - E-Commerce, ERP, Logistics SaaS for clients in the US, UK, and EU. 🫵 𝗪𝗛𝗔𝗧 𝗬𝗢𝗨 𝗚𝗘𝗧 ✔️ As a PHP Developer and Laravel Developer - multi-role SaaS, complex permission layers, API integrations that hold up under production load. ✔️ As a Full Stack Developer PHP and Full Stack Developer Laravel - end-to-end from Database Architecture and Back-End Development to Vue.js frontends. 30–40% faster delivery than split-role teams. ✔️ As a PHP Laravel Developer for E-Commerce - order pipelines, inventory modules, payment integration, ERP logic. Clean enough that the next developer won't hate you. ✔️ As a Full Stack Developer Laravel for Logistics SaaS - last-mile tracking, KPI dashboards, API integration, fund management. 25–35% lower operational overhead post-launch. 🔥 𝗔𝗖𝗛𝗜𝗘𝗩𝗘𝗠𝗘𝗡𝗧𝗦 ✔️ 8 years · 1,400+ hours · Top Rated as a PHP Laravel Developer - E-Commerce, ERP, Logistics SaaS, FinTech across US, UK, and EU. ✔️ 100% satisfaction as a Full Stack Developer PHP - lifetime warranty on every codebase. ✔️ 15+ systems as a Full Stack Developer Laravel and Laravel Developer - multi-role access, order pipelines, integrations, dashboards built for operators. ✔️ 90% faster order processing · 80% lower manager workload via Full Stack Developer Laravel ERP and workflow automation as a PHP Laravel Developer. ✔️ 5–8 weeks faster time-to-launch through clean Software Architecture & Design and Full Stack Developer PHP ownership from day one. 🚚 𝗪𝗛𝗘𝗥𝗘 𝗜 𝗗𝗘𝗟𝗜𝗩𝗘𝗥 ✔️ As a PHP Laravel Developer and PHP Developer for SaaS - multi-role platforms, AI-powered scoring, automated reporting. 15+ products, 25–40% lower support load. ✔️ As a Full Stack Developer PHP - Back-End Development, API Integration, Vue.js, PostgreSQL backends for high data volumes. ✔️ As a Full Stack Ecommerce and flutter laravel-ready Laravel Shopify developer with php react frontends - supply chain, selling automation, filtration. 30–45% better conversion. ✔️ As a Full Stack Developer Laravel for Web Application development - payment systems, CRMs, logistics API integration. Every connection documented and maintainable. ✔️ As a PHP Developer and PHP Laravel Developer - 6–18 month engagements, php laravel react and laravel vue upgrades, Full-Stack Development that scales. 🏆 𝗜𝗡𝗗𝗨𝗦𝗧𝗥𝗬 𝗩𝗘𝗥𝗧𝗜𝗖𝗔𝗟𝗦 ✔️ E-Commerce & mobile app developer platforms - As a Full Stack Developer PHP and PHP Laravel Developer: order tracking, payment, full stack seo-ready architecture, recommendations. ✔️ Logistics - As a Full Stack Developer Laravel and PHP Laravel Developer: last-mile tracking, KPI dashboards, full stack laravel ecommerce + full stack developer shopify integrations. ✔️ ERP & Operations - As a Full Stack Developer Laravel and PHP Developer: inventory, order management. 40–70% less manual work through clean Database Architecture. ✔️ FinTech - As a PHP Laravel Developer and PHP Developer: bank statement processing, AI debtor scoring, audit-ready data flows. ✔️ AI-Powered SaaS - As a Full Stack Developer PHP: AI scoring into production Laravel platforms. ⚒️ 𝗛𝗢𝗪 𝗜 𝗕𝗨𝗜𝗟𝗗 ✔️ As a PHP Laravel Developer - Laravel, Symfony, Custom PHP, PHP Script, CodeIgniter with PHPUnit coverage and Software Architecture & Design from day one. ✔️ As a Full Stack Developer PHP, wordpress developer and web developer-aware engineer - Vue.js, JavaScript, HTML, HTML5, CSS, CSS3, Bootstrap, Tailwind CSS, jQuery, React, WordPress where it fits. ✔️ As a Full Stack Developer Laravel for data systems - PostgreSQL, MySQL, SQL, Database Architecture, Redis, Docker. PHP MySQL and php symfony stacks for scale, Software Debugging, and Web Design. ✔️ As a Web Application and Web Development expert - REST API, API Integration, Git, Angular, Node.js, python developer tools, react developer workflows, Back-End Development, Shopify, Desktop Application, Full-Stack Development, Software Development. 📊 𝗔𝗧 𝗔 𝗚𝗟𝗔𝗡𝗖𝗘 ✔️ Full Stack Developer PHP · Full Stack Developer Laravel · 1,000+ hrs · 100% JSS. ✔️ 15+ production platforms · 8 years · US, UK, EU · 30+ hrs/week. 🔹 Clean, documented code your next developer will thank you for. 🔹 Lifetime warranty - I fix what breaks on my side, no questions asked. Hire a PHP Developer and Full Stack Developer PHP who delivers. 👉 𝗖𝗹𝗶𝗰𝗸 𝗠𝗲𝘀𝘀𝗮𝗴𝗲 - 𝗹𝗲𝘁'𝘀 𝘁𝗮𝗹𝗸.

🚀 I’m Bogdan, a Python developer with strong experience building backend systems, web applications, automation tools, APIs, integrations, and data-driven solutions for startups, product companies, and growing businesses. As a Python developer, I help clients create reliable software, improve existing systems, automate manual processes, and build scalable products that support real business needs. 💡 My main stack includes Python, Django, Flask, FastAPI, REST API, PostgreSQL, MySQL, MongoDB, Redis, Docker, Celery, Git, AWS, and modern backend development workflows. As a Python developer, I can build clean backend architecture, develop secure APIs, connect databases, integrate third-party services, and create features that are easy to maintain and scale. 🧩 My skills: • Golang • Python • Django • Web Application • SQL • PostgreSQL • MongoDB • ChatGPT • HTML5 • PHP • jQuery • RESTful API • API • WordPress • Vue.js • CSS • JavaScript • React • API Development ⚙️ I have experience as a Python developer working on SaaS platforms, admin panels, dashboards, CRM systems, automation scripts, booking systems, eCommerce solutions, internal tools, and custom web applications. My work as a Python developer includes backend logic, database design, API development, authentication systems, payment integrations, performance optimization, bug fixing, and long-term technical support. 🔧 As a Python developer, I focus on writing clean, readable, and maintainable code. I understand that good software should not only work today but also be easy to extend in the future. A Python developer should be able to think about performance, security, scalability, and product goals at the same time, and this is the approach I bring to every project. 🚀 I can work as a Python developer on new product development, MVP builds, backend refactoring, API integrations, automation tasks, data processing, web scraping, database improvements, and cloud deployment. I also have experience with background tasks, scheduled jobs, file processing, email systems, reporting tools, and business workflow automation. 📈 Clients hire me as a Python developer when they need someone reliable who can understand requirements, suggest practical solutions, and deliver solid technical results. I can join an existing team, take ownership of backend features, support scaling efforts, or help stabilize and improve an existing project. 🛠️ My services as a Python developer include Django development, Flask development, FastAPI development, REST API development, database design, backend architecture, automation scripts, web scraping, third-party API integration, bug fixing, performance optimization, Docker setup, deployment support, and ongoing maintenance. 🤝 Beyond coding, I contribute as a Python developer who understands communication, planning, and product delivery. I have experience with Git workflows, code reviews, task estimation, debugging, technical documentation, and working with both technical and non-technical clients. In some projects, I work only as a Python developer. In others, I also help with architecture decisions, backend planning, and improving development workflows. 🔍 As a Python developer, I value clear communication, attention to detail, and practical problem-solving. I always try to understand the business goal behind each task, not just the technical requirement. This helps me build solutions that are useful, stable, and aligned with the client’s needs. 🎯 If you need a Python developer who can build, improve, automate, and support modern software products, I’m ready to help. Whether you need a Python developer for a new backend system, API development, automation, bug fixing, database work, or long-term product support, I can provide reliable technical execution and a responsible approach to your project. Best regards, Bogdan

Send your architecture for a free code review! I’m a Senior Full Stack Developer & Software Architect with 20+ years in custom software development. I use modern engineering strategies to build high-performance, enterprise-grade platforms. 🎯 What I bring to your brand as a Senior Full Stack Developer: ✔️ Over 20 years of commercial software engineering experience, leading .NET framework, C# development, and Node.js architectures for global enterprises. ✔️ Results-focused Full Stack Development: As a .NET Expert, I create scalable microservices architectures and API development plans that boost performance and handle high user concurrency. As a Software Architect, I ensure your custom software development is always ROI-driven and infinitely scalable. ✔️ Technical & Architecture Audit Mastery: As a Senior Full Stack Developer, I develop a detailed code audit, database audit, and technical architecture audit to map out your system structure. My cloud infrastructure expertise allows me to refine backend systems before scaling. I’ve delivered 150+ architecture audits and system performance reports, helping streamline software development workflows. ✔️ API Integration & Webhooks Expertise: As an API Specialist and backend developer, I prioritize REST APIs, GraphQL, and third-party integrations. My approach as a Software Architect focuses on secure authentication, OAuth2, and custom API architecture. ✔️ Frontend & Modern UI Solutions: As a Senior Full Stack Developer, I use React.js development and Vue.js optimization for high-performing user interfaces. As a .NET Expert, I handle Angular setups, UI component architecture, and frontend-to-backend integration to ensure your web application performs flawlessly. ✔️ Cloud Deployment & CI/CD Innovation: As an Azure developer and DevOps consultant, I use Docker containerization, Azure App Services, and Azure Functions to scale deployments. ✔️ Database & Performance Optimization: I am a database specialist and SQL Server developer. My technical data skills include PostgreSQL optimization, Entity Framework, and complex SQL queries. As a Software Architect, I ensure your database design is flawless using the best indexing and scaling strategies. ✔️ AI Integrations & Tooling: As an AI integration developer, I build C# and Python solutions for AI-driven services. My expertise includes pragmatic implementation of LLM APIs, OpenAI/Claude integrations, and utilizing the Model Context Protocol (MCP) to securely connect AI agents with backend systems and custom data sources without unnecessary over-engineering. 📊 My Achievements in Numbers: 🔶 Software Architect for a Global Enterprise (SaaS / B2B): ▪️ Improved API response times by 200% through technical code audit and query optimization. ▪️ Reduced cloud infrastructure costs by 50% via enhanced microservices architecture and Docker deployment. ▪️ Accelerated feature delivery by 30% using automated CI/CD pipelines and agile workflows. 🔶 Senior Full Stack Developer for a FinTech Platform: ▪️ Achieved 99.99% uptime through .NET migration and Node.js backend optimization. ▪️ Reduced database deadlocks by 100% with a technical database audit and SQL Server optimization. 🔶 API Specialist for an E-commerce Engine: ▪️ 2x checkout speed by redesigning the REST API and payment gateway integration (Stripe). ▪️ 3x faster user onboarding through architecture audit insights and Auth0 security implementation. Why should you hire me as your Senior Full Stack Developer and Software Architect? ▪️ 20+ years in software engineering, backend architecture, API development, and cloud infrastructure. ▪️ Senior Full Stack Developer in React.js, Vue.js, Angular, and modern JavaScript. ▪️ .NET Expert in C#, ASP.NET MVC, Web API, and .NET. ▪️ Delivered enterprise backend services and microservices architectures for B2B and SaaS platforms. ▪️ Node.js Specialist support for high-concurrency event-driven applications. ▪️ Database architecture specialist for SQL Server, PostgreSQL, and MySQL growth. ▪️ Expert in Azure DevOps, Docker containerization, and CI/CD pipelines. ▪️ Practical experience in AI integrations, delivering C# and Python solutions for AI-driven services, including LLMs and MCP. ▪️ Software Architect and CTO with a proven track record of zero-downtime, secure deployments. Specialized Development Services: 🔹 Architecture Audit: From database performance audit to technical code audit. 🔹 API Integration: From third-party API integrations to custom REST/GraphQL APIs. 🔹 Backend Development: From Node.js microservices to .NET Core enterprise systems. 🔹 Frontend & UI: React.js and Vue.js scalable applications. 🔹 Cloud & DevOps: Optimization for Azure App Services, Docker, and GitHub Actions. 🔹 AI Integrations: solutions for AI-driven services, LLM API endpoints, and MCP (Model Context Protocol) implementation. Looking for an experienced Senior Full Stack Developer and Software Architect? Let’s connect!

I am a Node.js developer with over 15 years of Full-Stack development experience. I've built 220+ web projects. I have 10+ years in Node.js development. Besides, I specialize in SaaS, Dashboards, Healthcare, Marketplaces, MarTech, FinTech, Real Estate, mobile apps, and enterprise software. 🏆 112k+ billed Full-Stack Development 💎 $4m+ earned in Full Stack Development 🥇 Senior full stack developer in React.js Node.js AWS Next.js Nest.js JavaScript Developer 📢 Our client, Eventbrite company, boasting $580M in revenue, said about working with us: "𝗧𝗵𝗲 𝗖𝗹𝗼𝗰𝗸𝘄𝗶𝘀𝗲 𝘁𝗲𝗮𝗺 𝘄𝗮𝘀 𝗲𝘅𝗰𝗲𝗹𝗹𝗲𝗻𝘁. 𝗪𝗲 𝗮𝗿𝗲 𝘁𝗵𝗿𝗶𝗹𝗹𝗲𝗱 𝘄𝗶𝘁𝗵 𝘁𝗵𝗲 𝗳𝗶𝗻𝗮𝗹 𝗽𝗿𝗼𝗱𝘂𝗰𝘁". As a skilled Node.js Developer, I’m proficient in AWS, Serverless, and Microservices, leveraging NestJS and ReactJS to craft scalable systems, and I specialize in building reliable solutions as a Node.js Developer using Vue.js Node.js, NestJS, and React.js. With Nest.js, I build strong server-side apps that have a smart structure and fast API routing. As a Node.js developer, I rely on TypeScript and Nest.js’s detailed docs to write code that’s easy to read and maintain. I also plug in extra Nest.js modules to simplify linking up with databases and outside services, making development quicker and more organized. I'm a skilled Node.js backend JavaScript developer with a focus on Node.js, crafting scalable and efficient server-side solutions. I harness MongoDB alongside Node.js to deliver versatile NoSQL database systems and possess deep knowledge of SQL for overseeing relational databases, ensuring data remains consistent and reliable. ➤ 𝗖𝗹𝗼𝗰𝗸𝘄𝗶𝘀𝗲 𝗦𝗼𝗳𝘁𝘄𝗮𝗿𝗲 𝗧𝗲𝗮𝗺 𝗛𝗶𝗴𝗵𝗹𝗶𝗴𝗵𝘁𝘀 💯 100% Top Rated Plus - 🎯 Top 3% of companies 📢 50% of our clients work with us for over 3 years 💎 84% of our clients strongly recommend our Node.js expertise 🥇 Awarded 'Best Upwork Agency in Dnipro' by Upwork 4 years running 🏆 Named 'Top Ukraine Development Company' by Clutch 3 years in a row 📱💻 310+ successfully completed projects over 10 years with a 4.9🏆 3rd-party rating 👉 𝗪𝗵𝘆 𝗬𝗼𝘂 𝗦𝗵𝗼𝘂𝗹𝗱 𝗪𝗼𝗿𝗸 𝗪𝗶𝘁𝗵 𝗠𝗲 𝗔𝘀 𝗬𝗼𝘂𝗿 𝗡𝗼𝗱𝗲.𝗷𝘀 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗲𝗿 ☑️ Latest Technologies: As a Node.js Developer, I harness Node.js, NodeJS, React, Vue.js, MongoDB, and Angular to build modern, scalable web applications. My expertise in NodeJS ensures your business stays competitive. ☑️ End-to-End Product Development: With comprehensive skills in Node.js for back-end and front-end technologies, I deliver fully integrated solutions as a Node.js Developer. Using NodeJS, I ensure cohesive user experiences and robust performance for faster project delivery. ☑️ Expertise Across Multiple Industries: As a Node.js Developer, I’ve completed projects in MarTech, Real Estate, Logistics, Healthcare, Travel and Hospitality, and FinTech using Node.js. My adaptability with NodeJS tailors strategies to your market. 𝗡𝗼𝘁𝗮𝗯𝗹𝗲 𝗣𝗿𝗼𝗷𝗲𝗰𝘁𝘀 ✔ Customized AI chatbot SaaS built with Node.js and OpenAI ✔ Multi-tenant fleet management software powered by NodeJS React Developer ✔ Logistic using Node.js ✔ Fintech solutions with a strong UX focus, developed as a Node.js JavaScript Developer 𝗪𝗵𝗮𝘁 𝗜 𝗖𝗮𝗻 𝗗𝗼 𝗙𝗼𝗿 𝗬𝗼𝘂 𝗔𝘀 𝗮 𝗡𝗼𝗱𝗲.𝗷𝘀 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗲𝗿 ✔ Develop web apps and websites from scratch using Node.js ✔ Handle client-side and server-side development with NodeJS Backend Developer ✔ AI Chatbot Development | AI Chatbot Developer ✔ Design application architecture tailored to your needs using Node.js ✔ Integrate third-party services (payment systems, Google services, social networks) with NodeJS Full Stack Developer ✔ Optimize high-load apps for speed, scalability, reliability, and security as a Node.js Developer ✔ Write comprehensive unit tests with Node.js for optimal user experiences As a passionate full stack developer Node.js Developer, I embrace new challenges and technologies. If your project requires unfamiliar tools, I’ll master them with Node.JS to deliver results. Have an idea needing skilled implementation? 𝗟𝗲𝘁’𝘀 𝗱𝗶𝘀𝗰𝘂𝘀𝘀 𝗵𝗼𝘄 𝗺𝘆 𝗡𝗼𝗱𝗲.𝗷𝘀 𝗲𝘅𝗽𝗲𝗿𝘁𝗶𝘀𝗲 𝗰𝗮𝗻 𝗯𝗿𝗶𝗻𝗴 𝘆𝗼𝘂𝗿 𝘃𝗶𝘀𝗶𝗼𝗻 𝘁𝗼 𝗹𝗶𝗳𝗲! 👌

I'm a skilled developer with 10+ years of experience in the software industry, especially within Microsoft, cloud & mobile app solutions. Tell me your needs and I will do my best to help you. Having previously worked with large enterprises as well as many smaller start-ups, I have a broad range of experience and knowledge of the full software delivery lifecycle. Why should you hire me: ✅ I work fast and achieve your goals on time ✅ My total programming experience is 10+ years ✅ 200+ successful projects delivered ✅ Solid logic reasoning and problem-solving skills ✅ Responsiveness and high-quality delivery ✅ Best software development practices using ✅ Highly skilled Full Stack Developer and Mobile Developer team for enterprise solutions I am not interested in "one-hour" or "one-day" jobs. I establish long-lasting relationships with my clients. I always consider a commitment to the result as the first priority. Since 2015, I've been working as CEO at Lvivity - a boutique dev shop that I founded. My team will deliver you the best service, communication, and also reliable, and scalable code that will fulfill your business needs. Here is a list of technologies I have experience with: 🔸 Programming - .NET C# Architect, PM, BA, CEO @ Lvivity.com 🔸 Databases - MSSQL, MySQL, MongoDB, Oracle, Flat files (CSV, XML) 🔸 Source Control - TFS, GIT, SVN 🔸 API's - Google, eBay, Facebook, LinkedIn, Twitter, Amazon 🔸 And much more: ASP.NET MVC / Core2 / WPF / Xamarin / SWIFT, React.Native, Flutter, Azure, AWS So, I guarantee my enthusiasm for work and fulfilling my project with inexpressible efforts.

Trusted by startups and enterprises, including a #1 Finance App Store product, a $6.8M-funded fintech wallet, and a SaaS platform with 5M+ monthly visits. 7+ years of extensive experience. 100% Job Success. Senior Full Stack Developer and Tech Lead. Experienced in delivering scalable, full-stack web and mobile products across React, React Native, Node.js, and cloud infrastructure: AWS, K8s, Azure. 𝐏𝐫𝐨𝐣𝐞𝐜𝐭𝐬 𝐈'𝐦 𝐩𝐫𝐨𝐮𝐝 𝐨𝐟: 𝐑𝐞𝐚𝐥 𝐞𝐬𝐭𝐚𝐭𝐞 𝐦𝐚𝐫𝐤𝐞𝐭𝐢𝐧𝐠 𝐩𝐥𝐚𝐭𝐟𝐨𝐫𝐦 - helps agents and brokers generate more listings through personalized, trackable direct mail campaigns. Built full-stack on Next.js, Node.js, PostgreSQL, and AWS. 𝐅𝐢𝐧𝐓𝐞𝐜𝐡 - Cryptocurrency trading platform for the Icelandic market serving 20,000+ users, ranked #1 in Finance on the App Store. Built Profit & Loss tracking from scratch using transaction history and historical exchange rates, integrated multi-currency trading, and delivered both web and mobile experiences. Stack: React, React Native, Node.js, MongoDB. 𝐀𝐈 + 𝐀𝐮𝐭𝐨𝐦𝐨𝐭𝐢𝐯𝐞 - AI-powered car shopping platform that helps users find the best offers. Engineered SEO-friendly static HTML generation using AWS Lambda and S3, achieving strong SEO performance without SSR, and integrated a third-party dealer-matching API for verified sellers. 𝐒𝐚𝐚𝐒 - Project management SaaS with a Gantt chart, task dependencies, real-time collaboration via WebSockets, multilingual/timezone support, and Stripe/PayPal subscription billing. Stack: Next.js, Nest.js, MongoDB. 𝐄-𝐜𝐨𝐦𝐦𝐞𝐫𝐜𝐞 - Online furniture store with AI product assistant, AI-powered recommendations, custom CMS and CRM, Stripe-style checkout flow, and SEO optimization. Serving 100,000+ monthly users. Features include product variation, complex discount logic, category/subcategory navigation, wishlist, and efficient catalog filtering. Stack: React, Node.js. 𝐓𝐞𝐜𝐡 𝐬𝐭𝐚𝐜𝐤: ⚡ Frontend: React, Next.js, TypeScript, Redux, TanStack, Tailwind CSS ⚡ Backend: Node.js, Express, NestJS, Fastify, GraphQL ⚡ Databases: PostgreSQL, MongoDB, DynamoDB, Supabase ⚡ AWS: Lambda, S3, EC2, CloudFront, API Gateway, RDS ⚡ DevOps: Docker, Kubernetes, GitHub Actions, CircleCI, CI/CD ⚡ Mobile: React Native, Expo 𝐖𝐡𝐚𝐭 𝐈 𝐛𝐫𝐢𝐧𝐠: Full-stack ownership: I handle architecture, backend APIs, databases, frontend, and AWS deployment. AWS infrastructure: Serverless architectures with Lambda and S3, scalable deployments, CI/CD pipelines, cost-optimized setups. SaaS platforms: Multi-tenant architecture, subscription billing (Stripe/PayPal), admin dashboards, real-time collaboration via WebSockets. FinTech & compliance: Secure transaction flows, KYC/AML-ready architecture, regulatory compliance from day one. AI integrations: LLM-powered features, intelligent chatbots, and workflow automation. 𝐖𝐡𝐚𝐭 𝐰𝐨𝐫𝐤𝐢𝐧𝐠 𝐰𝐢𝐭𝐡 𝐦𝐞 𝐥𝐨𝐨𝐤𝐬 𝐥𝐢𝐤𝐞: ✓ Strategic input at the architecture stage ✓ Clear, proactive communication and honest timelines ✓ Code your team can actually maintain and scale ✓ Security and compliance thought through from the start ✓ 30% faster delivery using AI-powered development tools ✓ Available across US/EU time zones, fluent English Great software starts with the right technical partner. Message me, and we'll set up a quick call to discuss your project.

For 15+ years, I’ve built web and mobile apps that run reliably in production — not just demos. Clients come to me when systems need to stay stable under load and behave predictably. I focus on architecture and delivery that actually work in real conditions. I’ve delivered 100+ projects, including high-load systems with millions of users. My experience covers VPN & cybersecurity solutions, banking software, AI tools, real-time tracking systems, and scalable mobile/web platforms with complex functionality — along with other non-trivial systems. Tech: • Swift (UIKit / SwiftUI), Kotlin (Jetpack, Coroutines) • React (Next.js), Vue • Node.js (NestJS / Express), PHP (Laravel / Yii2) • WebSockets, TCP/UDP • REST / GraphQL APIs • Stripe / PayPal • Firebase, Amplitude, AppsFlyer, RevenueCat • OpenAI, Gemini, Claude, vector DBs • JWT, OAuth2, encryption, secure storage I handle architecture and key decisions myself. If needed, I involve additional developers — always transparently. Process is straightforward: define scope → plan → build → test → release → support. No overengineering, no surprises. If you need help with a new project or improving an existing one — send a short description, and I’ll quickly outline the best way to approach it.

75% avg reduction in manual ops. 3x faster feature shipping. 80% tier-1 support automated. These are the numbers from production AI systems I have shipped as a full stack developer and AI developer for SaaS, manufacturing, fintech, and healthcare teams. I build production-ready AI infrastructure - not prototypes. Multi-agent systems, LLM integrations, RAG pipelines, and AI automation that replaces real operational work. As a full stack developer and AI developer I own the full build - from LLM selection and agent orchestration to vector databases, API layers, and production deployment. ⭐⭐⭐⭐⭐"Very good communication and follow-up. They resolved not only legacy issues, but also identified and fixed additional problems we had not noticed. The result was a fully functional system that met all our requirements." - Client, Microsoft Copilot Implementation ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ WHAT I BUILD AS A FULL STACK DEVELOPER AND AI DEVELOPER ▸ AI Systems & Multi-Agent Development ▸ Full stack AI infrastructure from LLM selection and agent orchestration to vector databases, API layers, and production deployment. LangChain, LangGraph, RAG pipelines, and agentic AI workflows. ▸ The intelligence core of your product, built by a full stack developer with AI developer depth. ▸ AI Assistant & Chatbot Development Conversational AI, internal knowledge assistants, RAG-powered document Q&A, and customer-facing chatbots using OpenAI, Claude, or Gemini. AI developer chatbot development integrated directly into your existing stack. Chatbot development that reduces tier-1 ticket volume by 70-80%. ▸ AI Integration & API Connectivity Full stack developer connecting AI to your existing CRM, ERP, SaaS tools, and databases via REST API, webhooks, LangChain, and workflow platforms including n8n, Zapier, and Make. ▸ AI Automation Agents Multi-agent autonomous systems that replace manual operational work - lead qualification, procurement pipelines, document processing, outreach, support triage, and reporting. AI automation built by a full stack developer with production deployment experience. ▸ RAG Pipelines & Vector Search RAG system design, vector database selection and configuration (Pinecone, Weaviate, FAISS), embedding pipelines, semantic search, and document AI. Full stack developer and AI developer work covering the full RAG architecture from chunking to retrieval evaluation. ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ DELIVERY NUMBERS 75% - avg reduction in manual ops 3x - faster feature shipping for product teams 80% - tier-1 support automated via chatbot development ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ CORE TECH STACK LLM & Models: OpenAI API, GPT-4o, Claude (Anthropic), Gemini, LLM Integration, Fine-tuning, Hugging Face, Whisper API Frameworks & Orchestration: LangChain, LangGraph, LlamaIndex, RAG, Multi-Agent Systems, Agentic AI, Autonomous AI Agents, Prompt Engineering Vector & Data: Pinecone, Weaviate, FAISS, Semantic Search, Embeddings, AI Data Pipelines, Document AI Automation & Integration: n8n, Zapier, Make, REST API, FastAPI, Python, Node.js, AWS/GCP/Azure Full Stack Developer Stack: Python, TypeScript, React, Node.js, .NET, PostgreSQL, FastAPI ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ INDUSTRIES Manufacturing | Construction | SaaS | Marketing | Fintech | Healthcare | E-commerce | Real Estate | HR Tech 📩 Send me a description of your current workflow. I will tell you within 24 hours where AI automation can remove the most manual work and what it would take to build it.